50 lines
1.1 KiB
Ruby
50 lines
1.1 KiB
Ruby
class Options
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def initialize(cmake="cmake")
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@cmake = cmake
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@options = {}
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configure
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end
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def to_s
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@options
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.reject {|name, (type, value)| value.nil?}
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.collect {|name, (type, value)| "-D #{name}=#{value == true ? "ON" : value == false ? "OFF" : value.shellescape}"}
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.join(" ")
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end
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def cmake_options
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return @cmake_options if @cmake_options
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output = nil
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Dir.chdir __dir__ do
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output = `#{@cmake.shellescape} -S sources -B build -L`
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end
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started = false
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@cmake_options = output.lines.filter_map {|line|
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if line.chomp == "-- Cache values"
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started = true
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next
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end
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next unless started
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option, value = line.chomp.split("=", 2)
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name, type = option.split(":", 2)
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[name, type, value]
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}
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end
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private
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def configure
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cmake_options.each do |name, type, default_value|
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option = option_name(name)
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value = type == "BOOL" ? enable_config(option) : arg_config("--#{option}")
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@options[name] = [type, value]
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end
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end
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def option_name(name)
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name.downcase.gsub("_", "-")
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end
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end
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